Statistics and probability

Combination

A selection in which order does not matter.

Common notation C(n,r)=n!/[r!(n−r)!]

In one sentence

What does Combination mean?

A selection in which order does not matter.

How it is written

C(n,r)=n!/[r!(n−r)!]

A compact example

Choosing 2 members from 5 gives 10 combinations.

Other names and search terms

binomial coefficient.

Clear answers

Questions about Combination

What does Combination mean in mathematics?

A selection in which order does not matter.

How is Combination written?

A common notation is C(n,r)=n!/[r!(n−r)!].

What is an example of Combination?

Choosing 2 members from 5 gives 10 combinations.